Mario and Luigi Meet Yoshi in Fiery First Look at The Super Mario Galaxy MovieA Knight of the Seven Kingdoms gave fans an illuminating flashback moment with Ser Duncan the Tall (Peter Claffey) and his late master, Ser Arlan of Pennytree (Danny Webb). A Knight of the Seven Kingdoms has our attention. "I felt bad for Ser Arlan at some point," he explained to EW in a Jan. 27 interview. "He was the only person who's ever looked out for Dunk and really stuck with Dunk. Season one of A Knight of the Seven Kingdoms debuts new episodes Sundays on HBO Max.